IEC TS 62271-307 ED1

High-voltage switchgear and controlgear - Part 307: Procedures for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

General information

Current stage: 30.20 Effective date: Jul 31, 2026

Next stage: PCC Next stage date: Oct 23, 2026

Originator: IEC

Owner: TC 17/SC 17C

Type: Technical Specification

Life cycle

NOW

IN_DEVELOPMENT
IEC TS 62271-307 ED1
30.20 CD study/ballot initiated
Jul 31, 2026

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